Home / 101,946.85-140,682.77-56,627.76

Finding the Fourth Proportional to 101,946.85, 140,682.77 and 56,627.76

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Solution

The fourth proportional to 101,946.85, 140,682.77 and 56,627.76 is: 78,144.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,946.85 : 140,682.77 = 56,627.76 : x
  2. Step 2: Convert to fraction form
    101,946.85/140,682.77 = 56,627.76/x
  3. Step 3: Cross multiply
    101,946.85x = 140,682.77 × 56,627.76
  4. Step 4: Simplify right side
    101,946.85x = 7,966,550,119.66
  5. Step 5: Solve for x
    x = 7,966,550,119.66/101,946.85
  6. Step 6: Final answer
    x = 78,144.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.